diff --git a/appveyor.yml b/appveyor.yml
index f16a06a..c587886 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 environment:
   matrix:
-    - TARGET: 1.17.0-x86_64-pc-windows
+    - TARGET: 1.21.0-x86_64-pc-windows
       COMPILER: msvc
 install:
   - if %COMPILER%==gnu choco install -y mingw